[FFmpeg-trac] #866(avcodec:open): QT IV44 decodes with graphic corruption

FFmpeg trac at avcodec.org
Mon May 6 13:59:15 CEST 2013


#866: QT IV44 decodes with graphic corruption
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             Reporter:  ami_stuff   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  indeo4      |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by ami_stuff):

 Finally I was able to reproduce this with new samples.

 The problem is that FFmpeg's indeo4 decoder doesn't work correctly when
 file is encoded with enabled "Scalability" and encoding quality is lower
 than 35% (see attached samples, esp. "scal_[20/25/30]p_every_1.avi").

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/866#comment:2>
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